Device for fixing watch-movements in their cases.



PATENTED JUNE 27, 1905.

A. PFISTER.

DEVICE FOR FIXING WATCH MOVEMENTS IN THEIR CASES.

APPLICATION FILED MAY 22, 1903.

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' pzlfi edzfl'lls'ivr. 5 a mm ad atko'znuga Q/Vitn zoom PATENTED JUNE27, 1905.

A. PFISTER.

DEVICE FOR FIXING WATCH MOVEMENTS IN THEIR GASES.

APPLIOATION FILED MAY 22, 1903.

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Patented June 27, 1905.

UNITED STATES PATENT OFFICE.

ALFRED PFISTER, OF ST. IMIER, SIVITZERLAND, ASSIGNOR TO FABRIQUE DESLONGINES, FRANOILLON & COMPANY, OF ST. IMIER. SWITZER- LAND.

DEVICE FOR FIXING WATCH-MOVEMENTS IN THEIR CASES.

SPECIFICATION forming part of Letters Patent No. 793,153, dated June 27,1905.

Application filed May 22, 1903. Serial. No. 158,362.

To (LZZ whom, if; 717.051 concern:

Be it known that I, ALFRED PFIsTEn, a citizen of the Republic ofSwitzerland, residing at St. Imier, canton of Berne, Switzerland,

have invented certain new and useful Improvements in Devices for Fixingatch-h Iovements in Their Cases; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable IO others skilled in the art to which it appertains to makeand use the same.

In pocket-watches the movement is generally fixed in the case by meansof an edge of the pillar-plate, which rests on a projection onthe rim ofthe watchcase and is kept in place by the inner rim of the watch-glass.

In the fixing arrangement which forms the object of the presentinvention the dial itself is furnished with the fitting-rim, intended torest on a projection on the rim of the case, the pillar-plate beingrigidly fixed to the dial.

Figure 1 is a side view partly in section; Fig. 2, a similar view of amodified form; Fig. 3, a similar view of a further modification; Fig.at, an elevation; Fig. 5, a plan view of the dial-plate removed from thecase; Fig. 6, a plan view of the case with the movement and dial-plateremoved; and Fig. 7 is a similar view to Fig. 2, showing the ordinarybezel 0 and ring in position.

In the form of the invention shown in Fig. 1, a. is the projection onthe rim of the case, on which the fitting-rim 7/ of the metallic part cof the dial rests. (Z is the enamel face of this latter, attached to themetallic part c. The pillardate e is rigidly fixed to the metallic partc of the dial by means of screws f, the heads of which are sunk in thepart 0. These screws pass through the plate 0 and are 4 furnished on theside of the plate opposite to the dial with a nut 5 which keeps theplate tightly against the dial.

In the form of the invention shown in Fig. 2 the metallic part c of thedial is, as in Fig. 1, furnished with thefitting-rim Z). This part,

moreover, has a circular flange 7a inclosing the plate a and furmshedwith screws 1/, which pass through it and are screwed into the plate insuch a manner as to firmly connect it with the metallic part of thedial.

In the form of the invention shown in Fig. 3 the metallic part of thedial is in two parts a and Z;, of which 0 bears the enamel face (Z,while Z; is provided with a fitting-rim 7) and with the circular flangeor ring 7t, surrounding the plate a. The part is, besides, has a bevel1, which engages the circular beveled edge of the part c, and a secondbevel m, covering the circular beveled rim of the enamel face (Z, sothat the parts 0, (Z, and 7t, forming 5 1 the dial, are firmly connectedtogether. The circular ring surrounding the plate, likewise has screws'2 passing through it, which are screwed into the plate, so as to firmlyconnect it with the dial. ()5

In the forms of the invention illustrated in Figs. 2 and 3 the circularring 72. may be replaced by two or three claws made in one piece withthe fitting-rim 7) and having screws running through them, which arescrewed into the plate, as shown in Fig. I.

It will be observed that in each of the forms of the inventionillustrated the seating of the fitting-rim is nearer the external faceof the dial than is the face of the plate which is toward the dial andthat the diameter of the dial is greater than that of the plate.

I claim 1. In a device of the character described,

a dial-plate comprising a main plate and a dial-face for carrying thefigures, said main plate having integral therewith a flange for holdingthe movement within the case, and a shoulder to rest on a part of saidcase.

2. Means for securing watch-movementsin their cases, consisting of aninward extension formed on the case, a dial-plate having a lipoverlapping and supported by the outer face of the extension and aflange upon the dialplate for assembling the movement and dial- 9 plate.

3. Means for securing watch-movements in their cases, consisting of adial-plate, a pillarplate, an inwardly extending projection formed onthe case below the upper edge thereof to form an outwardly-facing recessadapted to receive the dial-plate, and means for securing the dial-plateto the pillar-plate.

4. Means for securing Watch-movements in their cases, consisting of anannular inward extension formed on the case, adial-plate having anannular lip overlapping and supported by the outer face of theextension, a flange upon the dial-plate, a pillar-plate, and means forsecuring the flange to the pillar-plate.

5. Means for securing watch-movements in their cases, consisting of adial-plate, a pillarplate, an inwardly-extending annular projectionformed on the case below the upper edge thereof to form anoutwardly-facing recess adapted to receive the dial-plate, and means forsecuring the dial-plate to the pillar-plate.

6. Means for securing Watch-movements in their cases, consisting of adial-plate, a pillarplate, an inwardly-extending annular projectionformed on the case below the upper edge thereof to form anoutwardly-facing recess, an annular lip formed on the dial-plate andarranged to lie in said recess, a flange extendthrough the flange forsecuring the dial-plate to the pillar-plate.

In testimony whereof I have afiixed my signature to this specificationin the presence of two Witnesses.

ALFRED PFISTER. Witnesses:

VITAL SCHURCH, JULns CHAPNY.

